Home / 521,641,014.30-782,461,521.45-279,776,310.30

Finding the Fourth Proportional to 521,641,014.30, 782,461,521.45 and 279,776,310.30

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Solution

The fourth proportional to 521,641,014.30, 782,461,521.45 and 279,776,310.30 is: 419,664,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,641,014.30 : 782,461,521.45 = 279,776,310.30 : x
  2. Step 2: Convert to fraction form
    521,641,014.30/782,461,521.45 = 279,776,310.30/x
  3. Step 3: Cross multiply
    521,641,014.30x = 782,461,521.45 × 279,776,310.30
  4. Step 4: Simplify right side
    521,641,014.30x = 218,914,197,423,005,344
  5. Step 5: Solve for x
    x = 218,914,197,423,005,344/521,641,014.30
  6. Step 6: Final answer
    x = 419,664,465.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.